Maryland Geological Survey 



83 



XVII. Section at Stony Point 1 mile above North Ferry Point, Magothy River. 



Cretaceous. Feet. 



("Laminated sands 6-8 



Magothy. .. \ Black, lignitic clays with marked unconformity at 



[_ base 15-20 



Raritan Piebald, predominantly red plastic clay 1-4 



Total 22-32 



XVIII. Section at Brennen Sand Company's pit, Severn River, Anne Arundel 



County. 



Cretaceous. 

 Magothy. 



Raritan. 



Feet. 



Small pebbles (% inch) cemented with sand 2 



Coarse sand 1% 



Brick-red and gray mottled clay 16 



Tough, plastic, greenish-black clay 5 



Light snuff-colored plastic clay, lower 2 feet showing 

 alternating bands of pink and snuff, varying horizon- 

 tally to a pure white pottery clay 6 



White sand 3 



Light gray clay, with knife edges of white sand 3 



White glass sand, medium coarse, with some arkose. . . .10 

 (The Raritan formation has been shown by borings to 

 continue downwards for 77 feet, the upper 30 feet of 

 this being glass sand) 



Total 46V 2 



XIX. Section on west side Sullivan Cove, Severn River. 



Feet 



Pleistocene Sandy loam 3-4 



Cretaceous. 



Matawan. . . . Fine buff, micaceous sand with weathered glauconite. .16 

 Chocolate-colored sandy clay with lignite and leaf im- 

 pressions 3-4 



Iron crusts. 



Chocolate-colored leaf-bearing clay with irregular pock- 

 ets of white micaceous, somewhat lignitic sand 2 



Orange and buff sand cross-bedded with thin lamina? 

 of chocolate-colored clay and lignitic lens of very 



coarse sand 0-5 



I Argillaceous, laminated lignitic beds 6 



Pyritiferous, micaceous sandy clay %-3 



I Lignitic bed 0-2 



Sandy indurated clay 0-2 



Very white compact sand 3 



1 Light drab compact sandy clay 4 



Magothy. 



Total 36% 



